Cortexene Nootropic This means that men with longer penises are able to provide a greater degree of sexual satisfaction to their partners. Here, we'll go over how you can use flaxseed to increase the size of your penis, as well as what benefits you can get from doing so. In truth, men stressing over their insufficient” penile size and sexual performance isn't news anymore. A penis is considered abnormally small only if it measures less than 3 inches (about 7.5 centimeters) when erect, a condition called micropenis.